Home / 170,966.79-256,502.03-121,143.42

Finding the Fourth Proportional to 170,966.79, 256,502.03 and 121,143.42

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Solution

The fourth proportional to 170,966.79, 256,502.03 and 121,143.42 is: 181,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,966.79 : 256,502.03 = 121,143.42 : x
  2. Step 2: Convert to fraction form
    170,966.79/256,502.03 = 121,143.42/x
  3. Step 3: Cross multiply
    170,966.79x = 256,502.03 × 121,143.42
  4. Step 4: Simplify right side
    170,966.79x = 31,073,532,545.43
  5. Step 5: Solve for x
    x = 31,073,532,545.43/170,966.79
  6. Step 6: Final answer
    x = 181,751.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.